Catalysis of Tetraphenylboron by Pd Nanoclusters in the Presence of Hg [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 2001.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- vp : digital, PDF file
- Additional Creators
- United States. Department of Energy. Savannah River Site, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- More than 300-million L of high-level radioactive waste (HLW), a fission-product material associated with the dissolution of spent nuclear fuel for recovery of plutonium, await treatment at U.S. Department of Energy (DOE) sites. Previous attempts to concentrate radiocesium by precipitation with tetraphenylborate (TPB) produced unexpected high levels of benzene (a TPB decomposition product). The waste contains noble metal catalysts, but elevated levels of Hg in the waste could inhibit catalysis. Our studies with simulated HLW shows Hg enhances the Pd-catalyzed decomposition of TPB. After reaction, Pd exists as 3 to 10 nm nanoclusters and a PdHg amalgram. These studies provide more information about the fundamental mechanisms of TPB decomposition. A better understanding of these complex systems will aid in the development of treatment strategies - should precipitation of radiocesium with TPB ion be considered in the future.
- Report Numbers
- E 1.99:wsrc-ms-2001-00396
wsrc-ms-2001-00396 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
06/04/2001.
"wsrc-ms-2001-00396"
Science ISSN 0193-4511; SCEHDK FT
Duff, M.C. - Funding Information
- AC09-96SR18500
View MARC record | catkey: 14413548